Crude-oil vaporizer.



No. 735,376. PATENTED AUG. 4, 1903.

. F. G. HOBART.

GRUDE OIL VAPORIZER.

APPLIOATON FILED MAR. l. 1901.

N0 MODEL.

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N0 MODEL.

` APPLICATION FILED MAR. 1. 1901.

PATENTED AUG. 4, 1903. F. G. HOBART. GRUDB OIL VAPORIZBR.

PATENT Fries.

FRANKLIN GATFIELD HOBART, OF BELOIT, WISCONSIN, ASSIGNOR TO FAIRBANKS, 'MORSE & COMPANY, `OF CHICAGO, ILLINOIS, A COR- PORATION OF ILLINOIS.

sPEcIsIcnTIoN forming para of Letters PatentNo. 73me, dated August 4, 1903.

i Application iiled March 1,1901. Serial No. 49,397. (No model.)

To a/ZZ whom t may concern:

Beit known that I, FRANKLIN GATFIELD HOBART, a citizen of the United States, residing atBeloit,in the countyof Rock and State of Wisconsin, have invented certain new and useful Improvementsin Crude-Oil Vaporizers, of which the following, taken in connection with the accompanying drawings, is a speciiication.

My invention has for its object the provi sion of a device of the kind specified which while `easy and cheap to construct will be more efficient in its action than other devices of like kind heretofore in use with which I am familiar. l

A further object of my invention is the provision of means whereby the exhaust heat of a hydrocarbon-engine may be employed in heating acasing` placedwithin a Vaporizing-chamber, the whole being provided wi'thf` novel means whereby the precise amount of the exhaust heat utilized inthe vaporization of the crude oil may be controlled with great nicety or,ifdesired, absolutely out off.

\ Another object of `my invention is the provision of a chamberthrough which the-heated products of combustion pass, which although formed with a double passage or duct through the same can be readily constructed in a single piece or casing without any joints within said heating-chamber through which the contents might escape or come in contact with the crude oil or vapors generated therefrom.

Another object of my invention is the combination, with a generating device like that just described, of improved means for introducing `the crude oil orl hydrocarbon fluid thereto and means vwhereby the oil is caused tofiow downward over a plurality of tabular surfaces arranged exterior to said heating chamber orcasing and increasing in size toward the bottom, the said tabular surfaces being somewhat cupped or hollowed out, so that the oil may collect and be acted upon j, by the heat uponeach 'of the same.

nient.

Figure 1 is a vertical section through an apparatusembodying my invention. Fig. 2 is a view,'mostly in elevation, showing the upper half of the device illustrated in Fig. 1. Fi'g.\3 is a detail considerably enlarged in order to show the portion of the feed mechanism whereby the oil is introduced to the heating-surfaces. Fig. 4 is another detail of like kind. Fig. 5 is a horizontal section taken on the line 5 5 of Fig. 1. Fig. 6 is a horizontal section taken on the line 6 6 of Fig. 1. Fig. 7 is a sectional view of the upper part of the heat-casing, showing the controlling-V valve in a dierent position.

Referring now more particularly to Fig. 1, it will be seen that in` carrying fout 'my invention I provide, rst, a heatlcasin`g8, pro` vided at its upper end with a heat-inlet 9 (preferably connected with the exhaust lfrom a hydrocarbon-engine) and with an outlet 10 and a downwardly-projecting extension or tube 11, provided with a dividing partition 0r septum l2, extending downwardly `to a point somewhat above the bottomof the tubular extension, thus separating theinterior of the tube into a double passage, Athrough which the heated gases pass downward upon the left side and upward' upon the right side, provided the valve 13 be in the position shown in Fig. 1. The valve 13 is inserted for the purpose of regulating or controlling the amount of heat that shall pass downward through the heat tube or casing, a pin 14. serving to stop the valve at the two extremes of its vmove- 15 represents any convenient handle for manipulating the valve 14.

Attached to the upper liange portion 16 of the heat-casing there is an outer casing 17, serving t0 inclose the tubular extension 11 and .leave a space between the inside wall` of the casiug17 and the tubular extension, within which air is admitted by means of an airinlet 18 and from which the gas is permitted to escape through the gas-outlet19. Around the casing 17 there is a jacket "20, between which and the casing there may be inserted, if desired, some packing material, as indicated at 21. At the lower end the heat-tube 11 is somewhat contracted insize and extends through the bottom 22 of the casing 17 Patented August 4,- 1903.7;

ICO

diameter near the bottom of the tube thanV at the top, and at its upper end the heattube is encircled by a conical funnel 26, attached to the tube by means of lugs 27 in such position that there is a small opening between the funnel 26 and the tube.

At the right side of the upper end of the device shown in Fig. 1 there is an oil-inlet chamber 28, into which the oil is introduced from the oil-feed device 29, having a controlling or feedvalve 30 and the overflow-pipe I 3l for maintaining a fixed level of oil in the feed-reservoir 32. The oil-inlet chamber 28, into which the oil is introduced through an upwardly-pointed elbow 33, is provided with an outlet-passage 34, through which the oil already partially heated is permitted to iiow down onto the funnel 26, by which it is directed against the outside surface of the heattube 11, down which it ows over the tabular shelf-like projections 25, striking each in turn until it is fully vaporized or reaches the bottom of the chamber. The oil is drawn through the pipe 33 by suction.

If it be desired to cut 0E a portion of the heat passing through the heat-tube, the valve 13 is turned so that there will be an opening downward into the heat-tube and also upward directly into the outlet passage or pipe 10. If it be desired to cut off the heat-tube altogether, it can be done by throwingthe valve 13 around to the position shown in Fig. 7, thus permitting the exhaust from the engine to escape through the outlet-pipe 10 without any of the heat passing through the heat-tube.

The operation of my invention is as follows: The valve 13 being put in the position shown in Fig. l and the engine running, the exhaust products of combustion from the engine passingdownward and around-the septum 12 and thence out through the escape- Vpipe l0 and the valve 30 being open, oil 'admitted to the feed-chamber 28 runs down upon the funnel 26 and thence drops over the shelf-like projections 25 in the direction of the bottom of the chamber, the air, which is being drawn into the vaporizing-chamber 24,

meanwhile acting upon Athe oil, (which is being highly heated by the eifect of the heated tube 11,) and thus becoming impregnated with vapor is allowed to escape through theV and for applying heatwhen necessary to start the operation of the device. v

Having thus described my invention, what .t Iclaim as new, and desire to secure by Letters Patent, is-

1. A generator for forming hydrocarbon gas, comprising a heat-tube, a downward extension upon said heat-tube, a vaporizingchamber entirely su rrounding said heat-tube, a septum or partition in said heat-tube, forming passages on opposite sides of said partition, and a valve located at the upper end of said heat-tube, constructed to regulate the passage of the heat downward at one side of said partition and thence to its outlet, substantially as described.

2. A generator for forming hydrocarbon gas, comprising a vaporizing-chamber, a selfregulating oil-supply therefor, adownwardlyextending heating-tube within and surrounded by said vaporizing-chamber, a septum or partition therein, forming passages on opposite sides of said partition and passages for the heat downward at one side of said partition, through said heating-tube, and thence to the outlet thereof, substantially as described.

3. A generator for hydrocarbon-engines comprising a heat-tube, means for supplying the same with heat, a vaporizing -chamber around said tube, and shelf-like projections extending into said vaporiziug-chamber, said projections encircling said heat-tube and increasing in diameter toward the lower end thereof, and means at the upper end of said tube for directing the oil to be heated against the exterior surface of the tube whence it may flow downward over each of said projections in turn, substantially as described.

4:. A generator for hydrocarbon -engines comprising a heat-tube, means for supplying the same with heat, a vaporizing-chamber around said tube, and shelf-like projections extending into said vaporizing-chamber, said projections encircling said heat-tube and increasing in diameter toward the lower end thereof, and a funnel attached to said heattube for directing the. oil to be heated against the exterior surface of the tube whence it may flow downward over each of said projections in turn, substantially as described.

5. A generator for hydrocarbonengines comprising a heat-tube, means for supplying the same with heat, a vaporizingchamber around said tube, shelf-like projections extending into said vaporizing-chamber, said projections encircling said heat-tube and increasing in diameter toward the lower end thereof, a funnel attached to said heat-tube for directing the oil to be heated against the exterior surface of the tube whence it may flow downward over each of said projectionsin turn, an oil-inlet chamber, and a connecting-passage from said oil-inlet chamber to the upper side of said funnel, substantially as described.

6. A heat-tube for a hydrocarbon-gas gen- IOO erator provided with a downwardly-extending partition or septum dividing the interiorV into a double passage-way, a surrounding vaporizing-chamber and an extension at the lower end through the vaporizing-chamber provided with a removable plug whereby the interior of the tube may be exposed, substantially as described.

7. A heat-tube for a hydrocarbon-gas generator provided with a downwardly-extending partition or septum dividing the interior into a double passage-Way, and a chamber at the lower end provided with a removable plug whereby the interior of the tube may be eX- posed, said tube having upon its outer surface a plurality of she1flke projections arranged concentrically thereon and of larger FRANKLIN GA'IFIELD HOBART.

Witnesses:

P. C. BROOKS, C. J. MITCHELL. 

